Load X11 dynamically

The loaders have been generated through hpvb's dynload-wrapper, although
they had to be heavily handpatched to workaround some already reported
issues with it. I added a note to each generated file to account for
that.

As GLAD uses X11 stuff directly, I had to define the GLAD_GLX_NO_X11
macro to not let do it that, and handle myself the display loading and
screen handling part myself, which wasn't that hard but it's still
something worth saying.

I plan to improve greatly the X11 backend (including this aspect) but,
as the release isn't that far and I'm also working on the Wayland
backend, this will do for now, I hope.

1 files changed, 72 insertions, 0 deletions

diff --git a/platform/linuxbsd/x11/dynwrappers/xext-so_wrap.h b/platform/linuxbsd/x11/dynwrappers/xext-so_wrap.h
new file mode 100644
index 0000000000..991d07b405
--- /dev/null
+++ b/platform/linuxbsd/x11/dynwrappers/xext-so_wrap.h
@@ -0,0 +1,72 @@
+#ifndef DYLIBLOAD_WRAPPER_XEXT
+#define DYLIBLOAD_WRAPPER_XEXT
+// This file is generated. Do not edit!
+// see https://github.com/hpvb/dynload-wrapper for details
+// generated by ./generate-wrapper.py 0.3 on 2022-12-02 12:51:55
+// flags: ./generate-wrapper.py --include /usr/include/X11/extensions/Xext.h --sys-include <X11/extensions/Xext.h> --include /usr/include/X11/extensions/shape.h --sys-include <X11/extensions/shape.h> --soname libXext.so.6 --init-name xext --output-header xext-so_wrap.h --output-implementation xext-so_wrap.c
+//
+// NOTE: Generated from Xext 1.3.5.
+// This has been handpatched to workaround some issues with the generator that
+// will be eventually fixed. In this case, non-existant symbols inherited from
+// libX11, but absent in libXext.so.6, were removed and an include needed for
+// proper parsing was added (this had also to be temporarily added to the
+// original header, as dynload-wrapper would complain otherwsise)
+#include <stdint.h>
+
+// HANDPATCH: Needed for a successful compilation.
+#include <X11/Xlib.h>
+
+#define XShapeQueryExtension XShapeQueryExtension_dylibloader_orig_xext
+#define XShapeQueryVersion XShapeQueryVersion_dylibloader_orig_xext
+#define XShapeCombineRegion XShapeCombineRegion_dylibloader_orig_xext
+#define XShapeCombineRectangles XShapeCombineRectangles_dylibloader_orig_xext
+#define XShapeCombineMask XShapeCombineMask_dylibloader_orig_xext
+#define XShapeCombineShape XShapeCombineShape_dylibloader_orig_xext
+#define XShapeOffsetShape XShapeOffsetShape_dylibloader_orig_xext
+#define XShapeQueryExtents XShapeQueryExtents_dylibloader_orig_xext
+#define XShapeSelectInput XShapeSelectInput_dylibloader_orig_xext
+#define XShapeInputSelected XShapeInputSelected_dylibloader_orig_xext
+#define XShapeGetRectangles XShapeGetRectangles_dylibloader_orig_xext
+#include <X11/extensions/Xext.h>
+#include <X11/extensions/shape.h>
+#undef XShapeQueryExtension
+#undef XShapeQueryVersion
+#undef XShapeCombineRegion
+#undef XShapeCombineRectangles
+#undef XShapeCombineMask
+#undef XShapeCombineShape
+#undef XShapeOffsetShape
+#undef XShapeQueryExtents
+#undef XShapeSelectInput
+#undef XShapeInputSelected
+#undef XShapeGetRectangles
+#ifdef __cplusplus
+extern "C" {
+#endif
+#define XShapeQueryExtension XShapeQueryExtension_dylibloader_wrapper_xext
+#define XShapeQueryVersion XShapeQueryVersion_dylibloader_wrapper_xext
+#define XShapeCombineRegion XShapeCombineRegion_dylibloader_wrapper_xext
+#define XShapeCombineRectangles XShapeCombineRectangles_dylibloader_wrapper_xext
+#define XShapeCombineMask XShapeCombineMask_dylibloader_wrapper_xext
+#define XShapeCombineShape XShapeCombineShape_dylibloader_wrapper_xext
+#define XShapeOffsetShape XShapeOffsetShape_dylibloader_wrapper_xext
+#define XShapeQueryExtents XShapeQueryExtents_dylibloader_wrapper_xext
+#define XShapeSelectInput XShapeSelectInput_dylibloader_wrapper_xext
+#define XShapeInputSelected XShapeInputSelected_dylibloader_wrapper_xext
+#define XShapeGetRectangles XShapeGetRectangles_dylibloader_wrapper_xext
+extern int (*XShapeQueryExtension_dylibloader_wrapper_xext)( Display*, int*, int*);
+extern int (*XShapeQueryVersion_dylibloader_wrapper_xext)( Display*, int*, int*);
+extern void (*XShapeCombineRegion_dylibloader_wrapper_xext)( Display*, Window, int, int, int, Region, int);
+extern void (*XShapeCombineRectangles_dylibloader_wrapper_xext)( Display*, Window, int, int, int, XRectangle*, int, int, int);
+extern void (*XShapeCombineMask_dylibloader_wrapper_xext)( Display*, Window, int, int, int, Pixmap, int);
+extern void (*XShapeCombineShape_dylibloader_wrapper_xext)( Display*, Window, int, int, int, Window, int, int);
+extern void (*XShapeOffsetShape_dylibloader_wrapper_xext)( Display*, Window, int, int, int);
+extern int (*XShapeQueryExtents_dylibloader_wrapper_xext)( Display*, Window, int*, int*, int*, unsigned int*, unsigned int*, int*, int*, int*, unsigned int*, unsigned int*);
+extern void (*XShapeSelectInput_dylibloader_wrapper_xext)( Display*, Window, unsigned long);
+extern unsigned long (*XShapeInputSelected_dylibloader_wrapper_xext)( Display*, Window);
+extern XRectangle* (*XShapeGetRectangles_dylibloader_wrapper_xext)( Display*, Window, int, int*, int*);
+int initialize_xext(int verbose);
+#ifdef __cplusplus
+}
+#endif
+#endif